Used in gene delivery systems due to its ability to form complexes with DNA and RNA, enabling efficient cellular uptake. Its protonatable amine groups facilitate endosomal escape, enhancing transfection efficiency. Commonly employed in non-viral vector development for gene therapy.

Applied in smart coatings and responsive surfaces because of its pH-sensitive properties. Swells or collapses in response to pH changes, making it suitable for controlled release applications, such as drug delivery and biosensors.

Utilized in water treatment as a flocculant for removing suspended particles and organic matter. Its cationic nature allows effective binding to negatively charged contaminants, improving clarification and purification processes.

Incorporated into hydrogels and contact lens materials for biomedical devices, where it contributes to moisture retention and biocompatibility. Also used in wound dressings for its ability to interact with biological tissues and support healing.